D’MAND® SYSTEMS
102-140
DM-Series Pre-Fab Easy Installation System For Models: 006-DM-PK, 008-DM-PK Installation and Operating Instructions for Existing Homes with Standard Piping SUPERSEDES: New Plant I.D. 001-1024
EFFECTIVE: April 15, 2003
Taco® D’MAND® Systems are manufactured using the highest quality U.S. made component parts available. Patented Integral Flow Checks (IFC) are built into each D’MAND pump to prevent cold water from entering the hot water line. Patented ACT D’MAND Electronics are the controls for each D’MAND System.This state-of-the-art electronics allows the D’MAND System to accurately sense temperature and automatically shut off the system to maximize comfort and energy savings. D’MAND Systems are the only recirculation product that saves both energy and water approved by the US Department of Energy and State Energy Commissions. You can look forward to over 15 years of life expectancy with a Taco D’MAND System. taco-hvac.com ®
Installation shall be in accordance with the manufacturer’s instructions or warranty may be voided. IMPORTANT Operation of the Taco D’MAND System without being plumbed into water lines may damage the pump and void the warranty. PRE-INSTALLATION CHECKLIST 1. Taco D’MAND System includes: • Models 006-DM/006-DM-PK, 008-DM/008-DM-PK • “00” Cartridge circulating pump with built-in D’MAND Electronics, power cord, Integral Flow Check (IFC) and mounting bracket • Starter button • Set of two (2) 1⁄2" plumbing adapter tees (included with “PK” models only) • Set of two (2) 1⁄2" stainless steel flex lines (included with “PK” models only)
2. Tools you need: • Pipe or crescent wrench • Pliers • Phillips and flat head screwdrivers • Wire strippers • Drill and 5⁄8 inch drill bit 3. Best location for the Taco D’MAND System: • Typically, this would be at the fixture farthest away from the water heater, generally the kitchen or master bath room. If your hot water supply runs in two different directions from the water heater, you may need more than one Taco D’MAND System. PUMP POSITION Pump should always be installed in a horizontal position (as shown) with D’MAND label facing up toward the sink. Be sure arrow on pump casing is pointing from left to right (hot water to cold water side) prior to connecting the flex lines. Note: T’s and flex lines supplied by Taco provide maximum flow and performance. Alternative plumbing parts may restrict flow and delay hot water to fixtures.
INSTALLATION FOR THE DM-SERIES D’MAND SYSTEMS MODELS 006-DM-PK AND 008-DM-PK The two custom adapter “T”s are designed to simplify your installation to 1⁄2 inch copper hot and cold supply lines. If you have plumbing other than as shown in these instructions, additional fittings may be required. Consult a plumbing professional. ELECTRICAL SUPPLY A 110V electrical supply outlet is required to power the D’MAND unit. If an outlet is not available, install a 110V outlet in accordance with all local electrical codes. Caution: Do not plug in the D’Mand System until all plumbing and wiring connections are completed and water supply is turned on. Running the circulating pump without water may damage internal components and void warranty. PLUMBING INSTRUCTIONS USING PK- PLUMBING ADAPTER KIT 1. Turn off the house water supply at the main shut-off valve. 2. Open hot and cold faucets at the fixture chosen for installation. This will relieve water pressure from the hot and cold water lines. 3. Remove the hot and cold shut-off valve angle stops from the 1⁄2" copper pipes located below the sink. Be sure to use a catch basin to drain water from hot and cold lines. Warning: To prevent scalding, use caution when removing valve on hot water line. For ease of installation, leave the existing compression ring and nut from the angle stops on the hot and cold water lines. 4. Remove the compression ring and nut from the adapter tees provided and slide on to opposite straight copper end. Attach the existing nut and ring to the threaded end of the tee and tighten firmly. 5. Connect the shut-off valves to the new compression ring and nut and tighten firmly. 6. Attach the stainless steel flex lines to the 1⁄2" threaded connection on the tees and the 1⁄2" threaded connec- 1. Turn off water supply and tions on the pump. Teflon tape is recommended for the remove angle stops. 1⁄ " threaded fittings. 2
2. Install tees and attach angle stops.
3. Connect flex lines to tees.
4. Connect flex lines to pump.
INSTALLING THE D’MAND SYSTEM STARTER BUTTON The manual starter button is a unique feature to the D’MAND System. The “on-demand” start to the circulating pump maximizes energy savings and controls operation only when there is a demand for hot water as compared to automatic timer controlled systems. 1. Drill a 5⁄8" hole into the desired location, typically the side or front of a vanity cabinet. 2. Insert the gray wire from the controller through the back side of the hole and connect it to the starter button. 3. Firmly insert the button into the drilled hole. Note: To operate the D’MAND System from other locations throughout the house, additional starters can be installed and spliced into the gray wire provided. Or for wireless remote operation, the Taco #554-1 transmitter/receiver kit can be easily installed. See “WIRELESS REMOTE KIT OPTION” below for instructions. 4. If wireless remote kit is not installed, use electrical tape or wirenuts to isolate the three leads (black, white and green) on the black wire. COMPLETING YOUR INSTALLATION 1. Turn on the water supply at the main. Check the system carefully for possible leaks. If leaks occur, check all compression and threaded connections and tighten firmly. Open hot and cold fixtures for one to two minutes to flush system completely. 2. Plug in the D’MAND System to the 110V electrical outlet. The pump will start automatically the first time only and run for a short time until a rise in temperature is detected by the thermal sensor. Pump will automatically shut off. 3. To test manual starter button, wait for hot water temperature to cool below 100°F (approximately 20-30 minutes). Press starter button to operate the pump. The D’MAND System should run for a short time and shut off automatically as in step 2 above. 4. Check hot water at the fixture for desired temperature. If hot water temperature is not satisfactory, refer to Trouble Shooting checklist section. WIRELESS REMOTE KIT OPTION – MODEL #554-1 Wiring the Receiver: The optional remote receiver kit is the white rectangular box with the three protruding wires (black, white and green). Batteries are not required. Wire the receiver directly to the corresponding wires on the controller by twisting each same colored wire together with gray wirenuts provided. Receiver should be mounted toward front of cabinet. (Range of transmitter is about 70'.) If transmitter will activate system from short distance, but not from further away, receiver may need to be relocated for better reception. Strapping receiver to front of drain trap facing outward will optimize reception. Installing Batteries to the Transmitter: Open transmitter by inserting a small flathead screwdriver into slot to release catch. Load battery with negative side of battery toward spring. Carefully replace cover. Numbered jumper pins are inside the transmitter and receiver. The signal frequency can be changed by removing the same numbered pins from both the receiver and transmitter. This should only be necessary when two D’MAND Systems are in the same home or neighboring homes. For Additional Wireless Transmitter Buttons use Model #554-2
TACO LIMITED WARRANTY STATEMENT LIMITED WARRANTY – Taco, Inc. will repair or replace without charge (at the Company’s option) any Taco product or part which is proven defective under normal use within one year of the date of shipment from Taco, Inc. For the replaceable cartridge assembly only, Taco will repair or replace without charge (at the company’s option) any replaceable cartridge assembly which is proven defective under normal use within three years of date of shipment. In order to obtain service under this warranty, it is the responsibility of the purchaser to promptly notify the company in writing and promptly deliver the item in question, delivery prepaid, to the factory. The address for notification and delivery is Taco, Inc., 1160 Cranston Street, Cranston, Rhode Island 02920. If the product or part in question contains no defect as covered in this warranty, the purchaser will be billed for parts and labor charges in effect at time of factory examination and repair. Any Taco product or part not installed or operated in conformity with Taco instructions or which has been subject to misuse, misapplication, the addition of petroleum based fluids or certain chemical additives to the system, or other abuse will not be covered by this warranty.
TACO, INC. OFFERS THIS WARRANTY IN LIEU OF ALL OTHER EXPRESS WARRANTIES, ANY WARRANTY IMPLIED BY LAW INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS IS IN EFFECT ONLY FOR THE DURATION OF THE EXPRESS WARRANTY SET FORTH IN THE PARAGRAPH ENTITLED “LIMITED WARRANTY” AS SHOWN ABOVE. THE ABOVE WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR STATUTORY, OR ANY OTHER WARRANTY OBLIGATION ON THE PART OF TACO, INC. TACO, INC. WILL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF ITS PRODUCTS OR ANY INCIDENTAL COSTS OF REMOVING OR REPLACING DEFECTIVE PRODUCTS. This warranty gives you specific rights, and you may have other rights which vary from state to state. Some states do not allow limitations on how long an implied warranty lasts or on the exclusion of incidental or consequential damages, so these limitations or exclusions may not apply to you.
TROUBLESHOOTING – DIAGNOSING SPECIFIC PROBLEMS PROBLEM 1. The pump does not run when push button is pressed.
2. The water is not hot enough.
3. There is hot water at the cold water tap.
4. Water is not hot enough when pump shuts down. 5. There is hot water in the cold water lines only
POSSIBLE CAUSE A. No power at electrical outlet B. You’ve plugged the controller into an electrical outlet controlled by a wall switch, (such as the outlet under many kitchen sinks that controls the garbage disposal.) C. Power cord is not secured to pump D. Wire to push button is not connected well E. The temperature setting is already sensing “hot” water so the pump is not being activated A. Pump was installed with water flow going in the wrong direction B. There is something in the piping that has blocked the flow of water A. The water temperature sensor is loose or dislodged
B. The temperature sensitivity setting now in place is too low, so the pump is not shutting down soon enough A. The temperature sensitivity setting now in place is too low, and the pump is turning itself off too soon A. The pump is installed backwards
REMEDY • Plug the controller into a “hot” outlet
• Shut off power, then make sure wires have good contact
• Call 1-401-942-8000 to reset sensitivity setting • Check the arrows on the pump casing to make sure they point in the correct direction (see page 2) • Check the piping for obstruction • Check the connection of the water temperature sensor to make sure it is firmly attached to the plug and casing • Call 1-401-942-8000 for reset information
• Call 1-401-942-8000 for reset information
• Reinstall the pump correctly
Do it Once. Do it Right. ™ TACO, INC., 1160 Cranston Street, Cranston, RI 02920 Telephone: (401) 942-8000 FAX: (401) 942-2360. TACO (Canada), Ltd., 6180 Ordan Drive, Mississauga, Ontario L5T 2B3. Telephone: 905/564-9422. FAX: 905/564-9436. Visit our web site at: http://www.taco-hvac.com
Printed in USA Copyright 2003 TACO, Inc.